
#main-nav.nav-tabs.nav-stacked > li > a > span {
    color: #4A515B;
}
.navbar-default .navbar-nav>li>a {
    color: #fff;
}

.navbar .nav > li .dropdown-menu {
    margin: 0;
}
.navbar .nav > li:hover .dropdown-menu {
    display: block;
}